Takumi Kayano, who was reincarnated in another world due to a mistake by God, meets a young pair of twins, a boy and a girl, in the forest. He decides to take them to the town together when a monster suddenly appears.
Takumi teaches the twins, Allen and Elena, how to make sweet breads that don't exist in the other world at the town's bakery. After coming to the other world and gaining magical abilities, they explores the labyrinth.
The expedition makes its way through the forest, but something seems off. There are far too few monsters appearing. Then Takumi finally discovers the truth behind the eerie gaze.
Takumi and the twins take on a new mission, but the guild members and villagers are unsure if they are up to the task. After a tough battle, Takumi's animal companions evolve and have a surprise in store.
Takumi is confronted by a slave trader who sees Allen and Elena as his merchandise. A guard quickly arrives to resolve the situation. How can Takumi resolve this and set off to the sea with the twins?
Takumi and the children helped the merfolk and were generously rewarded. They head to a small island to finally master water magic, but then they encounter a strange monster.
Takumi bids farewell to the Azure Palace and continues on his way to Bailey. Along the way, he discovers a dungeon with 30 levels and decides to explore it a bit.
After arriving in Bailey, Takumi first talks with Silphyreel and receives some news and gifts. Then, he heads to the Adventurer's Guild, where a great commotion suddenly breaks out.
Takumi has a conversation with Cedric, the lord of Bailey. Cedric shows particular interest in the food that Takumi has introduced to the land. Cedric's sons also seem enthusiastic.
Takumi has found the trading company that owns the sunken ship. When he returns it, he is introduced to a variety of interesting spices. An idea for a new dish immediately comes to mind.
Takumi arrives once again at Cedric's place with the twins, and Cedric immediately has a request for him. Next up is a dungeon that they haven't yet completed. What awaits them down there?
